Coleopterological Notices. 493 



antenna very slender, not compressed, nearly three-fourths as long as the 

 body, joints proportioned in length nearly as in the female of harrisi, rather 

 finely and densely punctate throughout, distinctly, moderately densely pubes- 

 cent, the pubescence becoming extremely short but denser toward apex. 

 Proihorax a little more than twice as wide as long measured from the base of 

 the spines ; apex subtruncate, slightly narrower than the base, the apical 

 angles right, not rounded, slightly everted and laterally prominent ; base 

 transverse, very broadly, feebly lobed in the middle ; sides obtusely angnlate, 

 the spines slender, erect, rather long, feebly turned backward toward apex ; 

 disk strongly impressed along the basal margin, without distinctly impressed 

 median line, very coarsely, deeply punctate, the punctures very widely and 

 sparsely scattered toward the middle, extremely coarse, dense and unevenly 

 coalescent laterally, the surface gradually declivous toward the sides, the 

 lateral margins acute, the hypomera extremely finely densely punctate. 

 Scutellum with short sparse pubescence. Elytra parallel, about two and one- 

 third times as long as wide, six times as long as the prothorax and about one- 

 third wider ; apex truncate and Insinuate, the sutural spines long, slender 

 and straight ; disk with very feeble elevated lines which are obsolete in basal 

 and apical third, very coarsely, deeply but not very densely punctate toward 

 base, the punctures gradually becoming smaller and denser from base to apex. 

 Sterna with very short, moderately dense pubescence. Legs extremely slender 

 throughout, moderate in length. Length 24.6 mm.; width 8.3 mm. 



California (Mt. Diablo). 



Although represented by a single female, I have no doubt of the 

 specific distinctness of the present species ; from the female of harrisi 

 it of course differs completely, and from the male of spiculum it 

 differs radically in the nature of the elytral sculpture, in the form 

 of the sutural spines and in the extremely fine dense punctuation 

 of the hypomera, these being completely impunctate, smooth and 

 polished, with the exception of a few scattered punctures near the 

 upper margin anteriorly, in spiculum. The marked pubescence 

 of the antenna?, together with the characters above enumerated and 

 many others, in addition, which are perfectly asexual in harrisi, 

 seem to show that the species is not closely related to spiculum. 



The type was received from Mr. Dunn with the indicated locality 

 attached, but it is quite remarkable that such a conspicuous species 

 should have remained undiscovered in a region so densely popu- 

 lated, and the locality may therefore possibly be erroneous. 



